Personally I don't like to be censored and every now and then I like to curse. It is clear that insults and belittling of others it NOT tollarable. But how about using terms like the system is "fucked up"?

I can keep my mouth in check if I have to, but I see forbidding some kinds of language just because someone doesn't like to hear it as censorship. As Keith Thompson put it in SO's meta:

Are there well defined rules for which words are considered expletives and which are not? If not, how the heck are we supposed to avoid them?